BEHAVIOR OF THE MAIN ELECTROMAGNETIC FORCES ACTING ON THE ARC IN THREE-PHASE ARC FURNACE
https://doi.org/10.17073/0368-0797-2015-7-479-485
Abstract
Abstract. The mathematical model to determine the key local and average integral electromagnetic forces acting on the arc discharges in the threephase arc furnace has been given. There are the forces acting on the arc column, which are caused by currents fl owing through the liquid metal, the forces of the electromagnetic interaction of the arc with other arcs and currents fl owing through the graphite electrodes and the forces of the interaction of the arc with its own magnetic fi eld. Through computer simulations it is shown that in three-phase arc furnace, when the distances between the electrodes are less than 1.5 – 2.5 of the arc lengths the most signifi cant infl uence on the behavior of the electric arc and its form have the forces of the electromagnetic interaction between the currents fl owing through the arc and graphite electrodes, and at large distances the most signifi cant infl uence on the behavior of the electric arc and its form have the force of interaction of the arcs with currents fl owing through the liquid metal. It was found that average resultant electromagnetic force acting on the arc can signifi cantly defl ect it from a straight line connecting the center of the electrodes and the axis of the electrode.
About the Authors
I. M. Yachikov
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Dr.Eng., Professor of the Chair of Computer Engineering and Applied Mathematics
38, Lenina ave., Magnitogorsk, 455000, Russia
E. M. Kostyleva
Magnitogorsk State Technical University named after G.I. Nosov
Russian Federation
Russian Federation
Postgraduate of the Chair of Computer Engineering and Applied Mathematics
38, Lenina ave., Magnitogorsk, 455000, Russia
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Review
For citations:
Yachikov I.M., Kostyleva E.M. BEHAVIOR OF THE MAIN ELECTROMAGNETIC FORCES ACTING ON THE ARC IN THREE-PHASE ARC FURNACE. Izvestiya. Ferrous Metallurgy. 2015;58(7):479-485. (In Russ.) https://doi.org/10.17073/0368-0797-2015-7-479-485
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